From 935c233daeebc9514f2a9963b994b28bb307fded Mon Sep 17 00:00:00 2001
From: Zufu Liu <unknown>
Date: Mon, 5 Jul 2021 15:12:58 +1000
Subject: Feature [feature-requests:#1408] Remove IsDBCSLeadByteInvalid as only
 caller removed.

---
 src/Document.cxx | 37 -------------------------------------
 1 file changed, 37 deletions(-)

(limited to 'src')

diff --git a/src/Document.cxx b/src/Document.cxx
index 0ec598bc2..4fdfe4e34 100644
--- a/src/Document.cxx
+++ b/src/Document.cxx
@@ -1087,43 +1087,6 @@ bool Document::IsDBCSTrailByteNoExcept(char ch) const noexcept {
 	return false;
 }
 
-bool Document::IsDBCSLeadByteInvalid(char ch) const noexcept {
-	const unsigned char lead = ch;
-	switch (dbcsCodePage) {
-	case 932:
-		// Shift_jis
-		return
-			(lead == 0x85) ||
-			(lead == 0x86) ||
-			(lead == 0xEB) ||
-			(lead == 0xEC) ||
-			(lead == 0xEF) ||
-			(lead == 0xFA) ||
-			(lead == 0xFB) ||
-			(lead == 0xFC);
-	case 936:
-		// GBK
-		return (lead == 0x80) || (lead == 0xFF);
-	case 949:
-		// Korean Wansung KS C-5601-1987
-		return (lead == 0x80) || (lead == 0xC9) || (lead >= 0xFE);
-	case 950:
-		// Big5
-		return
-			((lead >= 0x80) && (lead <= 0xA0)) ||
-			(lead == 0xC8) ||
-			(lead >= 0xFA);
-	case 1361:
-		// Korean Johab KS C-5601-1992
-		return
-			((lead >= 0x80) && (lead <= 0x83)) ||
-			((lead >= 0xD4) && (lead <= 0xD8)) ||
-			(lead == 0xDF) ||
-			(lead >= 0xFA);
-	}
-	return false;
-}
-
 int Document::DBCSDrawBytes(std::string_view text) const noexcept {
 	if (text.length() <= 1) {
 		return static_cast<int>(text.length());
-- 
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